nta.co.jp
Observed 2026-07-12T10:37:40.681Z (17h ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Runs onMarubeni OKI Network Solutions
Email byGoogle (SPF sender)
Also usesGoogle Search Console
6 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nta.co.jp actually stands on - every host below is a signed observation
nta.co.jp
A / AAAA
202.226.100.130
Marubeni OKI Network Solutionsserves the site
NS
a26-67.akam.neta3-64.akam.neta13-65.akam.neta14-67.akam.net+2 more
akam.netanswers its DNS
MX
pop08.nta.co.jppop09.nta.co.jp
Google (SPF sender)receives its email
HTTPS probe
timeout
No response within the timeout Connection timed out - no response within 3s
HTTP status0
Servernot observed
TLS protocolnot observed
TLS issuernot observed
Behind Cloudflareno
Response time6200 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
202.226.100.130
MX 2
2pop08.nta.co.jp3pop09.nta.co.jp
TXT 7
v=spf1 +ip4:202.226.100.0/23 +ip4:14.128.20.126 +ip4:203.191.250.22 +ip4:203.191.250.23 +ip4:124.109.181.7 +ip4:52.68.29.63/32 +ip4:52.197.98.119/32 +ip4:203.180.250.58/32 +ip4:203.180.251.105/32 +ip4:18.176.97.61 +ip4:203.137.191.65 +ip4:118.103.94.243 +ip4:210.175.69.4 +ip4:52.198.90.54 +ip4:122.221.93.36 +ip4:210.239.65.189 +ip4:52.192.228.0/24 +ip4:121.83.222.228 +ip4:54.95.37.112/32 +ip4:52.195.124.147/32 +ip4:58.191.47.236 +ip4:150.66.55.197 +ip4:58.191.47.9 +ip4:150.66.58.162 include:spf.probance.jp include:asp.cuenote.jp include:webcas.net include:_spf.activegate-ss.jp include:_spf.google.com include:mail.zendesk.com include:amazonses.com ~alln3Y6k9WkGQrSxD5n2XYAv0IkVgpHyGB9OEgmqMsGMAruNjHtvwCeRy8r67ctgoogle-site-verification=BCQt3tFGUXg1A5oIEnBxMETiVT1UMU8bRJxLNqLSBOYapple-domain-verification=hEuaQXQtF3LwIJyKv=DMARC1; p=none; rua=mailto:keisuke_katsumata@nta.co.jpv=DKIM1; (detected)
NS 6
a26-67.akam.neta3-64.akam.neta13-65.akam.neta14-67.akam.neta1-74.akam.neta10-64.akam.net
SOA 1
fuji-6.ptop.ad.jp postmaster.ptopnet.or.jp
TLS Certificates (0)
None.
Subdomains (6)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
61f23b67-b79f-490b-98b3-2cc7302b7339- Output Hash
ca61704917bdb83456f9cb4480a9551fb71b48e376dfeb896cf59d52687a7214- Signature
ed25519:8b011c88d84cb42fed4044cc7b8117b35c6b8f1967fa51f5b9c51d8e7740033d658ed8a20afb0cc77375593c38058a3b99b35ea79040a6009dab428680d4ba0b- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast